<?php
/**
 * Ensure that all style definitions have a colon.
 *
 * @author    Greg Sherwood <gsherwood@squiz.net>
 * @copyright 2006-2015 Squiz Pty Ltd (ABN 77 084 670 600)
 * @license   https://github.com/squizlabs/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
 */

namespace PHP_CodeSniffer\Standards\Squiz\Sniffs\CSS;

use PHP_CodeSniffer\Files\File;
use PHP_CodeSniffer\Sniffs\Sniff;

class MissingColonSniff implements Sniff
{
    /**
     * A list of tokenizers this sniff supports.
     *
     * @var array
     */
    public $supportedTokenizers = ['CSS'];

    /**
     * Returns the token types that this sniff is interested in.
     *
     * @return int[]
     */
    public function register()
    {
        return [T_OPEN_CURLY_BRACKET];
    }

    //end register()

    /**
     * Processes the tokens that this sniff is interested in.
     *
     * @param \PHP_CodeSniffer\Files\File $phpcsFile The file where the token was found.
     * @param int                         $stackPtr  The position in the stack where
     *                                               the token was found.
     */
    public function process(File $phpcsFile, $stackPtr)
    {
        $tokens = $phpcsFile->getTokens();

        if (false === isset($tokens[$stackPtr]['bracket_closer'])) {
            // Syntax error or live coding, bow out.
            return;
        }

        $lastLine = $tokens[$stackPtr]['line'];
        $end = $tokens[$stackPtr]['bracket_closer'];

        // Do not check nested style definitions as, for example, in @media style rules.
        $nested = $phpcsFile->findNext(T_OPEN_CURLY_BRACKET, ($stackPtr + 1), $end);
        if (false !== $nested) {
            return;
        }

        $foundColon = false;
        $foundString = false;
        for ($i = ($stackPtr + 1); $i <= $end; ++$i) {
            if ($tokens[$i]['line'] !== $lastLine) {
                // We changed lines.
                if (false === $foundColon && false !== $foundString) {
                    // We didn't find a colon on the previous line.
                    $error = 'No style definition found on line; check for missing colon';
                    $phpcsFile->addError($error, $foundString, 'Found');
                }

                $foundColon = false;
                $foundString = false;
                $lastLine = $tokens[$i]['line'];
            }

            if (T_STRING === $tokens[$i]['code']) {
                $foundString = $i;
            } elseif (T_COLON === $tokens[$i]['code']) {
                $foundColon = $i;
            }
        }//end for
    }

    //end process()
}//end class
